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Marquise|Lab Grown|IGI

1.55ct D VVS1 Marquise Lab Grown Diamond

EX • D/VVS1 • IGI LG780622176

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780622176

Diamond specifications and retailer prices

From $380 USD
As of November 2, 2026
Save $1,462 USD (79%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,060 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG780622176 or 780622176. Listed at 25 retailers as of November 1, 2026, with a 385% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780622176
Dimensions11.86 × 6.18 × 3.84 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.86 mm6.18 mm1.55 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780622176
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $3,060 USD|Low: $380 USD|High: $3,060 USD|Avg: $1,148 USD
Brilliant Earth
Retailer 2
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Retailer 24
November 2, 2026
Retailer 6$380 USD
Retailer 10$426 USD
Retailer 23$426 USD
Retailer 4$471 USD
Retailer 9$471 USD
Retailer 5$501 USD
Retailer 21$620 USD
Retailer 11$632 USD
Retailer 24$749 USD
Retailer 22$784 USD
Retailer 8$793 USD
Retailer 2$813 USD
Retailer 13$853 USD
Retailer 20$1,094 USD
Retailer 19$1,111 USD
Retailer 14$1,500 USD
Retailer 7$1,515 USD
Retailer 16$1,553 USD
Retailer 3$1,680 USD
Retailer 15$1,764 USD
Retailer 12$1,768 USD
Retailer 18$1,842 USD
Retailer 17$1,890 USD
Brilliant Earth$3,060 USD

30 data points across 24 retailers

25 retailers$380 USD to $1,842 USD

A
Cheapest Retailer
-
$380 USD
A
Retailer 2
-
$426 USD
View
A
Retailer 3
-
$426 USD
View
Final sale: no returns
A
Retailer 4
-
$471 USD
View
Retailer 5
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$471 USD
View
Price last confirmed 8 days ago
Retailer 6
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$501 USD
£394 GBP
View
Price last confirmed 16 days ago
A
Retailer 7
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$620 USD
View
A
Retailer 8
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$632 USD
View
A
Retailer 9
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$749 USD
View
A
Retailer 10
-
$784 USD
€747 EUR
View
A
Retailer 11
-
$793 USD
View
B+
Retailer 12
-
$813 USD
ZAR 13,130 ZAR
View
B+
Retailer 13
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$853 USD
£671 GBP
View
B+
Retailer 14
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$1,094 USD
A$1,683 AUD
View
B+
Retailer 15
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$1,111 USD
View
B+
Retailer 16
-
$1,500 USD
SGD 2,027 SGD
View
B+
Retailer 17
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$1,515 USD
View
B+
Retailer 18
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$1,553 USD
View
Retailer 19
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$1,680 USD
View
Price last confirmed 15 days ago
Retailer 20
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$1,695 USD
A$2,607 AUD
View
Price last confirmed 97 days ago
B
Retailer 21
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$1,764 USD
View
B
Retailer 22
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$1,768 USD
View
B
Retailer 23
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$1,842 USD
£1,450 GBP
View
Retailer 24
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$1,890 USD
£1,488 GBP
View
Price last confirmed 19 days ago
Most Expensive
Brilliant Earth
18441629A · Oct 16
$3,060 USD
View
Price last confirmed 17 days ago
24 more retailers have this diamond
Prices start from $380 USDSave up to $1,462 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.55ct Marquise
$380 USD